69 results about "Nerve stimulators" patented technology

A pulse generator that includes a communications module is disclosed herein. The communication module includes a transceiver and an antenna circuit. The antenna circuit includes a first pathway having a capacitor and a second, parallel pathway including a capacitor, and a resistor, and a radiating element arranged in series. The antenna circuit is tuned to have a resonant frequency corresponding to a desired transmission frequency and a bandwidth corresponding to shifts in the resonant frequency arising from the implantation of the antenna circuit in a patient's body.

The invention discloses a time domain data classification method based on a zero crossing point coefficient and an implantable stimulation system. The time domain data classification method based on the zero crossing point coefficient comprises the steps of obtaining a classification standard of time domain data; classifying the time domain data according to the classification standard; and selecting a stimulation strategy according to a classification result, so that the power consumption of the implantable nerve stimulator can be reduced, the endurance time of the implantable nerve stimulator can be prolonged, and the accuracy of closed-loop stimulation can be improved.

The invention discloses a wireless charger capable of carrying out program control while charging and an implantable nerve stimulator. The wireless charger disclosed by the invention comprises a charging sending unit, a first charger communication unit and a charger micro control unit, wherein the charging sending unit is used for producing wireless charging electromagnetic wave at a first preset frequency; the first charger communication unit is used for sending and receiving communication signals at a second preset frequency, wherein the first preset frequency is different from the second preset frequency; and the charger micro control unit is used for controlling the charging sending unit and the first charger communication unit, and the charger micro control unit is connected with the charging sending unit and the first charger communication unit. The wireless charger disclosed by the invention has the advantages that the aim of carrying out the program control on the implantable nerve stimulator while charging can be realized, time for keeping sitting or lying posture by a patient can be shortened, pain of the patient is reduced, and time for carrying out the program control by an doctor and charging can be shortened, so that usage experience of the patient and the doctor is improved.

The present invention is directed to a unique, user-friendly, disposable electrode to be used on metallic probes which are used in electromedical devices, such as transcutaneous electrical nerve stimulators (TENS) and microcurrent electrical therapy (MET) devices and other electrical simulators for applying electricity through the skin to the human or animal body. Additionally, the present invention describes a box for the storage and retrieval of the probe.

An implantable pulse generator that includes a current source/sink generator is disclosed herein. The current source/sink generator includes a current drive differential amplifier. The current driver differential amplifier is configured to selectively source current to, or sink current from a target tissue. The current drive differential amplifier includes an inverting input and a non-inverting input. One of the inputs of the current drive differential amplifier is connected to a virtual ground, and the other is connected to a current command. A stimulation controller can supply a voltage to the other of the inputs of the current drive differential amplifier to select either current sourcing or current sinking.

The invention provides an implanted electrode universal connection structure and device for electromagnetic compatibility injection voltage testing. The implanted electrode universal connection structure is used for electrically connecting implanted electrodes to an injection voltage testing device for electromagnetic compatibility testing of an implanted nerve stimulator. Since the implanted electrodes of different specifications have different structures and contact distances, the positions of conductive terminals in a mounting guide structure of a base can be adjusted according to the electrode contact distances of the implanted electrodes of different specifications, that is, the conductive terminals are moved and positioned according to the electrode contact distances of the implanted electrodes, so that the conductive terminal distances are consistent with the electrode contact distances of the implanted electrodes, universal electrical connection with the implanted electrodes of different specifications is realized, testing equipment does not need to be replaced additionally for the implanted electrodes of different specifications during injection voltage testing, the testing cost is reduced, and the testing efficiency is improved.

The invention discloses an implantable nerve stimulator, which carries out communication and electric energy receiving with an external energy controller through a radio frequency way. The implantable nerve stimulator comprises a master control chip, a stimulator antenna, an impedance matching circuit of the stimulator antenna, a rectification energy storage circuit, a modulation/ demodulation circuit, an electrode interface and one or a plurality of stimulating electrodes, wherein the master control chip comprises a master control CPU, a master control memory and a digital-to-analogue conversion current source circuit; the stimulator antenna and the impedance matching circuit of the stimulator antenna are in radio frequency coupling with the external energy controller; the rectification energy storage circuit extracts electric energy from a received input signal and stores the electric energy; the modulation/ demodulation circuit extracts control information including clinical stimulation parameters from the received input signal; the electrode interface distributes a stimulating pulse sequence to each corresponding stimulating electrode; the master control memory stores the received information; the digital-to-analogue conversion current source circuit generates the stimulating pulse sequence according to the clinical stimulation parameters; and the master control CPU controls operation of the implantable nerve stimulator. The implantable nerve stimulator can avoid treatment failure caused by radio frequency communication interruption or unsmooth radio frequency communication.

The invention relates to the field of implantable nerve stimulators, and particularly discloses a sacral-nerve stimulator adjusting the electric field direction. The sacral-nerve stimulator comprises an external program controller, an implantable pulse generator and a sectional stimulating electrode. The sectional stimulating electrode comprises multiple electrode segments capable of adjusting the electric field direction; the implantable pulse generator also comprises an electric field intensity sensor, the electric field intensity sensor is arranged at a target nerve, the electric field intensity sensor monitors the electric field intensity generated by the sectional stimulating electrode, and the electric field intensity sensor sends the monitored data to the implantable pulse generator or the external program controller; the monitored data comprises the first electric field intensity measured at the first position and the second electric field intensity measured at the second position. When the sacral-nerve stimulator adjusting the electric field direction is used, the electric-field applying direction of the sectional electrode can be rapidly adjusted to accurately stimulate target nervous tissue.

The invention belongs to the technical field of medical equipment, and discloses a channel module and an implantable nerve stimulator. The channel module comprises a channel upper cover and a channel lower cover, wherein the channel upper cover is provided with a first metallization area; the channel lower cover is detachably connected with a feed-through piece, and the channel upper cover is buckled on the channel lower cover to form a channel; the feed-through piece is provided with a second metallization area; and the first metallization area and the second metallization area are connected through a gold wire to communicate the feed-through piece with the channel upper cover. According to the channel module and the implantable nerve stimulator, a traditional lead mode is omitted, connection is facilitated and rapid, the space of the channel module is greatly saved, more channels can be arranged in a limited space, and the effective space utilization rate is increased.

This disclosure generally relates to a device, method, and system for diagnosing and treating nerve injuries with electrical stimulation. A probe is provided which connects to a nerve stimulator system which measures voltage and electrical current applied to a living body to detect a nerve injury location. A processor within the nerve stimulator system may adjust the voltage and current output to numb or deaden an injured nerve.

The invention discloses an external energy controller of a nerve stimulation system. Through a radio frequency way, electric energy is transmitted to an implantable nerve stimulator through a radio frequency way, and the external energy controller and the implantable nerve stimulator communicate. The external energy controller of the nerve stimulation system comprises an input device, an antenna module, a display device, a storage unit and a control unit, wherein the external energy controller receives information through the input device; the antenna module and the stimulator antenna of the implantable nerve stimulator carry out radio frequency coupling so as to send an input signal containing electric energy and control information to the implantable nerve stimulator, and instruction data can be received from the implantable nerve stimulator; the display device is used for displaying the data, the instruction and the input information; the storage unit stores an operation program, the input information and the data; and the control unit is independently connected with the input device, the antenna module and the display device so as to control operation of the whole external energy controller. The external energy controller of the nerve stimulation system can overcome treatment failure caused by short-time communication interruption, and the implantable nerve stimulator can obtain stable power supply.

An implantable nerve stimulator system comprises an implantable nerve stimulator and an in-vitro energy controller, the implantable nerve stimulator communicates with the in-vitro energy controller in a radio frequency mode and receives electric energy, the implantable nerve stimulator is provided with a main control CPU, a main control memory and a stimulating electrode, the main control memory is used for storing control information containing clinical stimulation parameters, and the main control CPU actively generates a stimulation pulse sequence by using the clinical stimulation parameters and applies the stimulation pulse sequence to the stimulation electrode. The electric pulse stimulation is implemented based on the treatment parameter combination stored in the implantable nerve stimulator, so that only the in-vitro energy controller is needed to provide radio frequency electric energy, and the operation reliability of the implantable nerve stimulator is improved. The implantable nerve stimulator is provided with an energy storage circuit, so that electric energy supply in a short time can be ensured under the condition of sudden communication interruption or unsmooth communication, and treatment interruption is avoided.

The invention relates to the technical field of medical instruments, in particular to an implantable nerve stimulation extension lead. The whole body comprises four connecting channels, the connecting channels are the same in structure, each connecting channel is connected to a four-contact electrode, four contacts of the electrodes are in one-to-one correspondence with connectors and square blocks correspondingly, finally the electrodes are locked through locking screws, after being implanted into a body, a stimulation signal is sent out through a nerve stimulator, sequentially passes through a connecting ring, a spiral line, the connectors and the square blocks of the extension lead, is transmitted to the electrode and then is transmitted into the body, so that the treatment purpose is achieved. The extension lead has multiple connecting channels, is wide in application range, can be connected to multiple electrodes at the same time, is large in treatment range and multiple in selectivity, and can achieve a better treatment effect.

The invention provides an implantable nerve stimulator, which comprises a rechargeable battery for providing electric energy; an stimulation output module used for outputting a stimulation signal; anauxiliary function module used for providing auxiliary functions related to therapy; an acquisition module used for acquiring electric quantity data of the rechargeable battery; and a processor used for controlling the working states of the stimulation output module and the auxiliary function module according to the electric quantity data so as to adjust the energy consumption of the stimulator.

A system to protect a neuro stimulator remote controller that includes: a cover, where the cover fits over a remote controller for a neuro stimulator; and openings over the surface of the cover, wherein the openings expose components of the remote controller. The components may include control buttons and at least one screen on the remote controller. Further, the present invention relates to a method of manufacturing a cover for a neuro stimulator remote controller that includes: defining any interactive components of a neuro stimulator remote controller; and creating a cover for the neuro stimulator remote controller, wherein the cover includes openings to gain access to the interactive components during use thereof. The interactive components may include a screen and control buttons.

The invention provides an implantable nerve stimulator suitable for four limbs of a human body, which belongs to the technical field of medical instruments and comprises a cylindrical end part, a shell part and a tail part which are sequentially connected to form a cylindrical end part, a shell part and a tail part, a circuit board is arranged in the shell part; a wireless charging coil is arranged in the end part, and the central axis of the wireless charging coil is parallel to the length direction of the shell part; an electrode connector for inserting an electrode is arranged in the tail part, and a connecting channel of the electrode connector is parallel to the length direction of the shell part; according to the implantable nerve stimulator, the layout of internal components is optimized, so that the overall width and thickness of the nerve stimulation electrodes are reduced, and the implantable nerve stimulator is conveniently implanted into four limbs of a human body.

A cautery safety controller can include a first input to receive a cautery power signal; a first output coupled to a nerve stimulator system; a second input coupled to receive a nerve detected signal; a zero-crossing detector coupled to receive the cautery power signal via the first input and output a nerve sense enable signal via the first output to the nerve stimulator system in response to detecting a zero crossing of the cautery power signal; and a nerve detection decision unit coupled to receive the nerve detected signal via the second input, generate a stop operation signal, and output the stop operation signal via a second output. A cauterizing pencil can be provided with a tap line for providing the cautery power signal. Alternatively, a cautery pad can be provided with a sense electrode for providing the cautery power signal.